Created
April 15, 2017 12:10
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Snake Game Developed Using Python
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# Snake Game | |
import pygame, sys, random, time | |
# check for errors | |
check_errors = pygame.init() | |
if check_errors[1] > 0: | |
print("(!) Had {0} initializing errors, exiting...".format(check_errors[1])) | |
sys.exit(-1) | |
else: | |
print("(+) PyGame successfully initialized!") | |
# Play surface | |
playSurface = pygame.display.set_mode((720, 460)) | |
pygame.display.set_caption('Snake game!') | |
# Colors | |
red = pygame.Color(255, 0, 0) # gameover | |
green = pygame.Color(0, 255, 0) #snake | |
black = pygame.Color(0, 0, 0) #score | |
white = pygame.Color(255, 255, 255) #background | |
brown = pygame.Color(165, 42, 42) #food | |
# FPS controller | |
fpsController = pygame.time.Clock() | |
# Snake Body and Food | |
snakePos = [100, 50] | |
snakeBody = [[100,50], [90,50], [80,50]] | |
foodPos = [random.randrange(1,72)*10,random.randrange(1,46)*10] | |
foodSpawn = True | |
direction = 'RIGHT' | |
changeto = direction | |
score = 0 | |
# Game over function | |
def gameOver(): | |
myFont = pygame.font.SysFont('monaco', 72) | |
GOsurf = myFont.render('Game over!', True, red) | |
GOrect = GOsurf.get_rect() | |
GOrect.midtop = (360, 15) | |
playSurface.blit(GOsurf,GOrect) | |
showScore(0) | |
pygame.display.flip() | |
time.sleep(4) | |
pygame.quit() #pygame exit | |
sys.exit() #console exit | |
def showScore(choice=1): | |
sFont = pygame.font.SysFont('monaco', 24) | |
Ssurf = sFont.render('Score : {0}'.format(score) , True, black) | |
Srect = Ssurf.get_rect() | |
if choice == 1: | |
Srect.midtop = (80, 10) | |
else: | |
Srect.midtop = (360, 120) | |
playSurface.blit(Ssurf,Srect) | |
# Main Logic | |
while True: | |
for event in pygame.event.get(): | |
if event.type == pygame.QUIT: | |
pygame.quit() | |
sys.exit() | |
elif event.type == pygame.KEYDOWN: | |
if event.key == pygame.K_RIGHT or event.key == ord('d'): | |
changeto = 'RIGHT' | |
if event.key == pygame.K_LEFT or event.key == ord('a'): | |
changeto = 'LEFT' | |
if event.key == pygame.K_UP or event.key == ord('w'): | |
changeto = 'UP' | |
if event.key == pygame.K_DOWN or event.key == ord('s'): | |
changeto = 'DOWN' | |
if event.key == pygame.K_ESCAPE: | |
pygame.event.post(pygame.event.Event(pygame.QUIT)) | |
# validation of direction | |
if changeto == 'RIGHT' and not direction == 'LEFT': | |
direction = 'RIGHT' | |
if changeto == 'LEFT' and not direction == 'RIGHT': | |
direction = 'LEFT' | |
if changeto == 'UP' and not direction == 'DOWN': | |
direction = 'UP' | |
if changeto == 'DOWN' and not direction == 'UP': | |
direction = 'DOWN' | |
# Update snake position [x,y] | |
if direction == 'RIGHT': | |
snakePos[0] += 10 | |
if direction == 'LEFT': | |
snakePos[0] -= 10 | |
if direction == 'UP': | |
snakePos[1] -= 10 | |
if direction == 'DOWN': | |
snakePos[1] += 10 | |
# Snake body mechanism | |
snakeBody.insert(0, list(snakePos)) | |
if snakePos[0] == foodPos[0] and snakePos[1] == foodPos[1]: | |
score += 1 | |
foodSpawn = False | |
else: | |
snakeBody.pop() | |
#Food Spawn | |
if foodSpawn == False: | |
foodPos = [random.randrange(1,72)*10,random.randrange(1,46)*10] | |
foodSpawn = True | |
#Background | |
playSurface.fill(white) | |
#Draw Snake | |
for pos in snakeBody: | |
pygame.draw.rect(playSurface, green, pygame.Rect(pos[0],pos[1],10,10)) | |
pygame.draw.rect(playSurface, brown, pygame.Rect(foodPos[0],foodPos[1],10,10)) | |
# Bound | |
if snakePos[0] > 710 or snakePos[0] < 0: | |
gameOver() | |
if snakePos[1] > 450 or snakePos[1] < 0: | |
gameOver() | |
# Self hit | |
for block in snakeBody[1:]: | |
if snakePos[0] == block[0] and snakePos[1] == block[1]: | |
gameOver() | |
#common stuff | |
showScore() | |
pygame.display.flip() | |
fpsController.tick(10) |
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